Hi we just had a security training refresher course and our instructor told us that you can make your cars safer by special lamination sheets sticking them on glass. Even if the glass breaks with a bomb blast or bullet or by angry mobs, the glass fragments stick on the place and do not fall and stick into your skin and eyes.
Secondly you can fix steel plates in the backseat so that in case of escape if some criminal fires at you the bullet does not pierce through the seat and hit you.
You can also place body armour (bullet proof jacked) on your seat and fill the side panels with armour or steel plates.
In case there is fire coming, the safest part of the car is the front wheel and the side of the engine block.
@Cool_Blue. if you illustrate your product with some photos, you will get many customers here.